64415643614141 has 4 divisors (see below), whose sum is σ = 64618847537532. Its totient is φ = 64212439690752.

The previous prime is 64415643614123. The next prime is 64415643614167. The reversal of 64415643614141 is 14141634651446.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10443787939225 + 53971855674916 = 3231685^2 + 7346554^2 .

It is a cyclic number.

It is not a de Polignac number, because 64415643614141 - 2¹⁰ = 64415643613117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64415643614141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64415643614111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101601961220 + ... + 101601961853.

It is an arithmetic number, because the mean of its divisors is an integer number (16154711884383).

Almost surely, 2^{64415643614141} is an apocalyptic number.

It is an amenable number.

64415643614141 is a deficient number, since it is larger than the sum of its proper divisors (203203923391).

64415643614141 is a wasteful number, since it uses less digits than its factorization.

64415643614141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203203923390.

The product of its digits is 3317760, while the sum is 50.

The spelling of 64415643614141 in words is "sixty-four trillion, four hundred fifteen billion, six hundred forty-three million, six hundred fourteen thousand, one hundred forty-one".